Finding the Fourth Proportional to 111.07, 153.24 and 67.38

Step by Step Solution

1. Step 1: Write the proportion equation
   111.07 : 153.24 = 67.38 : x
2. Step 2: Convert to fraction form
   111.07/153.24 = 67.38/x
3. Step 3: Cross multiply
   111.07x = 153.24 × 67.38
4. Step 4: Simplify right side
   111.07x = 10,325.72
5. Step 5: Solve for x
   x = 10,325.72/111.07
6. Step 6: Final answer
   x = 92.96